@maskmathofficial: School? YouTube? or MIT? #math #mathtrick #mathhack #maskmath #triangle

Angga Kristiyajati :

(x-y)(x+y) = x²+xy-xy-y²=x²-y² so if we want to find the a² from a²+b²=c², it is indeed a²=(c+b)(c-b)

Pete H61 :

youtube just skips some steps. the "MIT" solution only works if the known leg and hypotenuse differ by 1

0ddcook :

School is showing you ALL the steps because the point is for you to UNDERSTAND how it works. We don't care about the answer. You Tube does not care about showing HOW it works, it wants you to watch it and is selling getting the answer faster. MIT assumes you already understand how it works AND that you have worked out the fastest way to do it because all they want IS the answer the quickly.

🥓🥓Legendary_Duff🥓🥓 :

I don't understand how MIT got 81x - 1 = 51?

Dudu Fudu :

not for all numbers

Brad :

Yes as a mathematician there many ways of doing problems and I encourage students to try different approaches. But they need to know WHY it works in the first place

JeffK :

Explanation: a^2 = c^2-b^2 = (c+b)(c-b)

נהוראי🥷 :

My way 41^2-40^2=(41+40)(41-40)=81=x^2 x=sqrt81=9 😁

Solemn Sage :

Show your work! if it was done the MIT way, points would be deducted in all my mathematic schools.

𓆩⚔𓆪💢 ʙɪʀᴏɴ 💢𓆩⚔𓆪 :

Howw???

Abi_Fatih :

MIT is shortcut but we must learn the logic first

Atlas :

Me just knowing it was 9. 🤷‍♂️

doctor-know :

mathematical tricks and shortcuts are fine, but EQUATIONS ARE FOREVER

Ama Bimo :

i teach like the first one

CPLsoup :

not the school missing the square root symbol.

ultrAslan_Midyat :

School besser

Dovlaud :

Так, умники, попытайтесь объяснить мне, одиннадцатикласснику, как пользоваться 3 способом (MIT) .

Nay La Min :

41အနား ပြန်ရှာနည်းလေးပြပေးပါလားဗျ🥰🥰

juliakeranjik :

waww👍

REAL EARL'S ADVENTURE :

Question: Does this apply to ALL Pythagorean Triples?

Jimbob :

Do that in MIT test and you would fail.

movel2k :

Victor Soza Goicochea :

es lo mismo

silentalker :

this is my problem. 😅

hgc :

youtuber: 40^2